Minor documentation updates.

[config/dotfiles.git] / bin / battery.pl

diff --git a/bin/battery.pl b/bin/battery.pl
index 407e0bcd178c7c27c465db9a22b3a152320f594c..9a6a9760b1705652953d0c40d454937538aefd62 100755 (executable)
--- a/bin/battery.pl
+++ b/bin/battery.pl
@@ -1,5 +1,20 @@
 #!/usr/bin/perl
 
+# Copyright (C) 2011-2012  Simon Ruderich
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
 
 use strict;
 use warnings;
@@ -22,7 +37,7 @@ while (<$file>) {
     /^POWER_SUPPLY_([A-Z_]+)=(.+)$/;
     $battery{$1} = $2;
 }
-close $file;
+close $file or die $!;
 
 my $charge = int($battery{CHARGE_NOW} / $battery{CHARGE_FULL} * 100);
 
@@ -38,6 +53,7 @@ if ($screen_mode) {
     }
 
     print "\005{+$color}$charge%\005{-}\n";
+
 # Same in tmux mode.
 } elsif ($tmux_mode) {
     my $color;
@@ -51,7 +67,7 @@ if ($screen_mode) {
 
     print "#[fg=$color,bold]$charge%#[default]\n";
 
-# Just text output.
+# Plain text output.
 } else {
     print "$charge%\n";
 }